Headache: First aid

Most headaches are minor, and you can treat them with a pain reliever. Some headaches, however, signal a dangerous or serious medical problem. Don't ignore unexplained headaches or headaches that steadily worsen.

Get immediate medical attention if your headache:

Develops suddenly and severely

Progressively worsens over the course of a single day or persists for several days

Causes mental confusion or loss of consciousness

Immediate medical attention is also needed if your headache is accompanied by:

Seizures, dizziness or loss of balance

Weakness or paralysis, such as in the arms or legs

Numbness

Difficulty speaking or understanding speech

A reddened eye

Also seek medical attention if your headache:

Is accompanied by fever, stiff neck or rash

Is accompanied by changes in vision, such as blurring or seeing halos around lights

Is severe and follows a recent sore throat or respiratory infection

Begins or worsens after a head injury, fall or bump

Is triggered by changing the position of your head, coughing, sneezing, bending or physical activity

Is a different type of headache from your usual type and you're older than 50